CN109206582A - A kind of compound high polymer of double aggregates and its grouting method and application - Google Patents
A kind of compound high polymer of double aggregates and its grouting method and application Download PDFInfo
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- CN109206582A CN109206582A CN201810920534.4A CN201810920534A CN109206582A CN 109206582 A CN109206582 A CN 109206582A CN 201810920534 A CN201810920534 A CN 201810920534A CN 109206582 A CN109206582 A CN 109206582A
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- 229920000642 polymer Polymers 0.000 title claims abstract description 37
- 150000001875 compounds Chemical class 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims description 14
- 239000003245 coal Substances 0.000 claims abstract description 32
- 239000000463 material Substances 0.000 claims abstract description 21
- 229920000570 polyether Polymers 0.000 claims abstract description 17
- 239000003063 flame retardant Substances 0.000 claims abstract description 13
- 229920005862 polyol Polymers 0.000 claims abstract description 11
- 150000003077 polyols Chemical class 0.000 claims abstract description 11
- 239000004970 Chain extender Substances 0.000 claims abstract description 9
- 239000003054 catalyst Substances 0.000 claims abstract description 9
- 239000002270 dispersing agent Substances 0.000 claims abstract description 8
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 7
- 238000007569 slipcasting Methods 0.000 claims abstract description 7
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 6
- 239000002994 raw material Substances 0.000 claims abstract description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 11
- 238000012545 processing Methods 0.000 claims description 11
- 238000009826 distribution Methods 0.000 claims description 10
- 150000004985 diamines Chemical class 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- XZZNDPSIHUTMOC-UHFFFAOYSA-N triphenyl phosphate Chemical group C=1C=CC=CC=1OP(OC=1C=CC=CC=1)(=O)OC1=CC=CC=C1 XZZNDPSIHUTMOC-UHFFFAOYSA-N 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 7
- 235000013312 flour Nutrition 0.000 claims description 5
- 239000010881 fly ash Substances 0.000 claims description 5
- 238000012216 screening Methods 0.000 claims description 5
- 239000011863 silicon-based powder Substances 0.000 claims description 5
- 239000002699 waste material Substances 0.000 claims description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 4
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 claims description 4
- RSWGJHLUYNHPMX-UHFFFAOYSA-N 1,4a-dimethyl-7-propan-2-yl-2,3,4,4b,5,6,10,10a-octahydrophenanthrene-1-carboxylic acid Chemical compound C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 2
- GWOWVOYJLHSRJJ-UHFFFAOYSA-L cadmium stearate Chemical compound [Cd+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O GWOWVOYJLHSRJJ-UHFFFAOYSA-L 0.000 claims description 2
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 2
- 239000008116 calcium stearate Substances 0.000 claims description 2
- 235000013539 calcium stearate Nutrition 0.000 claims description 2
- 239000007822 coupling agent Substances 0.000 claims description 2
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 claims description 2
- 235000019359 magnesium stearate Nutrition 0.000 claims description 2
- 239000003607 modifier Substances 0.000 claims description 2
- 239000004576 sand Substances 0.000 claims description 2
- 239000011701 zinc Substances 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims 2
- WWZKQHOCKIZLMA-UHFFFAOYSA-N octanoic acid Chemical compound CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 claims 2
- JXSRRBVHLUJJFC-UHFFFAOYSA-N 7-amino-2-methylsulfanyl-[1,2,4]triazolo[1,5-a]pyrimidine-6-carbonitrile Chemical compound N1=CC(C#N)=C(N)N2N=C(SC)N=C21 JXSRRBVHLUJJFC-UHFFFAOYSA-N 0.000 claims 1
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 claims 1
- 235000021355 Stearic acid Nutrition 0.000 claims 1
- 239000002253 acid Substances 0.000 claims 1
- OBETXYAYXDNJHR-UHFFFAOYSA-N alpha-ethylcaproic acid Natural products CCCCC(CC)C(O)=O OBETXYAYXDNJHR-UHFFFAOYSA-N 0.000 claims 1
- 229910052788 barium Inorganic materials 0.000 claims 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical group CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims 1
- 239000008117 stearic acid Substances 0.000 claims 1
- 238000011049 filling Methods 0.000 abstract description 12
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 description 11
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 125000005474 octanoate group Chemical group 0.000 description 6
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 4
- AGXUVMPSUKZYDT-UHFFFAOYSA-L barium(2+);octadecanoate Chemical group [Ba+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O AGXUVMPSUKZYDT-UHFFFAOYSA-L 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- -1 polyoxypropylene Polymers 0.000 description 4
- 229920001451 polypropylene glycol Polymers 0.000 description 4
- 229920000909 polytetrahydrofuran Polymers 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 150000005846 sugar alcohols Polymers 0.000 description 4
- 238000007792 addition Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000002861 polymer material Substances 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- QMMFVYPAHWMCMS-UHFFFAOYSA-N Dimethyl sulfide Chemical compound CSC QMMFVYPAHWMCMS-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 150000003376 silicon Chemical class 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- KSBAEPSJVUENNK-UHFFFAOYSA-L tin(ii) 2-ethylhexanoate Chemical group [Sn+2].CCCCC(CC)C([O-])=O.CCCCC(CC)C([O-])=O KSBAEPSJVUENNK-UHFFFAOYSA-L 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6681—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38
- C08G18/6685—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38 with compounds of group C08G18/3225 or polyamines of C08G18/38
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4854—Polyethers containing oxyalkylene groups having four carbon atoms in the alkylene group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K11/00—Use of ingredients of unknown constitution, e.g. undefined reaction products
- C08K11/005—Waste materials, e.g. treated or untreated sewage sludge
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
- C08K7/26—Silicon- containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/001—Improving soil or rock, e.g. by freezing; Injections
- E21D9/002—Injection methods characterised by the chemical composition used
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K2003/023—Silicon
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Abstract
The present invention provides a kind of compound high polymer of double aggregates, it is related to safety of coal mines field of material technology, raw material including following quality component: 20-100 parts of polyether polyol, 20-100 parts of polymeric MDI, 5-10 parts of dispersing agent, 5-10 parts of catalyst, 5-10 parts of chain extender, 3-10 parts of fire retardant, 7-40 parts of coarse aggregate, 7-40 parts of fine aggregate；The present invention is suitable for the filling of coal mine coal seam, reinforcing and wind leaking stoppage, and the manufacturing cost of compound high polymer is low, and the probability of underground coal mine accident generation can be effectively reduced in slip casting after.
Description
Technical field
The present invention relates to safety of coal mines field of material technology more particularly to a kind of compound high polymer of double aggregates and its slip castings
Methods and applications.
Background technique
In recent years, Grouting was a kind of safe high molecular polymer of brand new ideas with safe material, to preventing watt
This aggregation, fall of ground, filling hole, closing fire dam, reduce nature, to the safety such as waterproof, fire prevention, gas explosion at reinforcing
Major contribution is made in production.With the increase of China's pit mining depth, in coal mine roadway excavation and repair process, due to lane
Road country rock is extremely easily broken, and the broken range of loosening is big, easily generation roof fall and side falling accident, both causes the uneasiness of construction
Entirely, it and causes drift section irregular, influences mine safety.
Chemical consolidation and filling are the effective measures for preventing and treating above-mentioned coal mining accident at present, although chemical grouting is in coal mine
Middle fractured coal and rock significant effect, but there is also many problems during slip casting, such as injecting paste material intensity is low, reaction temperature
The problems such as high is spent, these problems are badly in need of solving, to be preferably applied in prevention and control of mine disaster.It is low that the strength of materials is solved at present
The problem of mainly solved by reducing foaming materials multiple, but use cost can be greatly increased in this way, while will increase anti-
Temperature is answered, therefore finds a kind of new method, can reduce reaction temperature again while increasing intensity will can solve this
Problem.
Summary of the invention
Aiming at the problem that often there is terms of mechanics during above-mentioned Grouting, it is compound that the present invention provides a kind of double aggregates
Type high polymer and its grouting method and application.
To achieve the above object, the present invention adopts the following technical solutions:
A kind of compound high polymer of double aggregates, the raw material including following quality component: 20-100 parts of polyether polyol, polymerization
MDI20-100 parts, 5-10 parts of dispersing agent, 5-10 parts of catalyst, 5-10 parts of chain extender, 3-10 parts of fire retardant, 7-40 parts of coarse aggregate
With 7-40 parts of fine aggregate.
Further, the polyether polyol be polyethers A and polyethers B according to the volume ratio of 3:2 than mixed double groups
Divide polyether polyol, wherein the degree of functionality of polyethers A is 5, relative molecular weight 2000, and the degree of functionality of polyethers B is 6, average molecular
Amount is 1000, more preferably, using polyoxypropylene polyol and polytetrahydrofuran ethoxylated polyhydric alcohol.
Further, the isocyano-content in the polymeric MDI is 30.5%~32%.
Further, the dispersing agent is selected from barium stearate, resin acid zinc, calcium stearate, cadmium stearate, magnesium stearate and hard
The one or more of resin acid copper.
Further, the catalyst is stannous octoate, and the chain extender is dimethythiotoluene diamine, the fire retardant
For triphenyl phosphate.
Further, the coarse aggregate is selected from the one or several kinds of cobble, rubble and thick waste residue, particle diameter distribution 6
~10mm；The fine aggregate is selected from the one or more of mountain flour, silicon powder, flyash and fine sand, and particle diameter distribution is 1~5mm.
Further, coarse aggregate, fine aggregate content and account for the 30%~50% of total amount.
A kind of grouting method of the compound high polymer of double aggregates, steps are as follows:
(1) type of two kinds of aggregates is chosen according to the requirement of safety of coal mines material, and determines the partial size of two kinds of aggregates, is surveyed
Determine the bulk density and apparent particle density of coarse aggregate and fine aggregate；
(2) processing is modified with modifying agent respectively to the coarse aggregate and fine aggregate that pass through screening, after modifier treatment,
Polyethers A is mixed with modified coarse aggregate, stirring 3min, the dispersing agent progress decentralized processing of 5-10 parts of addition, and according to
1-3 parts of chain extenders of secondary addition, 2-4 parts of fire retardants and 1 part of catalyst stir 3min using forced stirrer, which is denoted as
Component A；
(3) a certain amount of modified fine aggregate is added in polyethers B and is mixed, 0.5min is mixed and stirs evenly,
It sequentially adds 1-3 parts of chain extenders, 2-4 parts of fire retardants and 1 part of catalyst thereto again, 3min is stirred using forced stirrer, it should
Mixture is denoted as component B；
(4) a certain amount of polymeric MDI is weighed, component C is denoted as；
(5) A that will be prepared, B, tri- kinds of components of C carry out three liquid mixing slip castings.
Further, the modifying agent uses the silane coupling agent and titanate coupling agent of 1:1 volume ratio, is added after mixing
Into 30% ethanol water, the liquid after being sufficiently mixed is as modifying agent.
A kind of compound high polymer of double aggregates in the filling of coal mine coal seam, reinforce and leak stopping in terms of application, be mainly used for coal
Layer geology is reinforced, in terms of coal mine gob, the filling of caving place and wind leaking stoppage；And it is being applied to underground coal mine filling and leak stopping
When, the volume ratio for inserting the coarse aggregate in high polymer and fine aggregate content is 5:1；When reinforcing applied to rock mass of coal mine, filling is high
Coarse aggregate and fine aggregate content volume ratio in polymers are 1:5.
The invention has the advantages that
1, there is good grain composition between double aggregates, so that porosity reduces, the total specific surface area of particle is smaller, to subtract
The dosage of few high polymer, to effectively reduce use cost while reaching identical mechanical property filling reinforcing volume；
2, coarse aggregate can be distributed on the outside of high polymer well and provide aggregate frame by dispersing agent, and fine aggregate is uniform simultaneously
It is dispersed on the inside of high polymer and is pressurized in gap, " outside one in one " considerably increases intensity, improves mechanical property；
3, since aggregate is inert material, it both ensure that high polymer hardening and later period composite property are unaffected, and
And it is cheap, be easy to get easy processing；
4, the presence of a large amount of aggregates makes high polymer when polymerization occurs, and fine aggregate can quickly absorb one
Divide heat to reduce reaction temperature early period, coarse aggregate can continue to constantly absorb late phase reaction heat, to make W-response temperature
Degree maintains in a more constant and safe range；
5, coarse aggregate is filled in larger hole, achievees the purpose that overall reinforce fills, and fine aggregate enters in minute fissure,
Play the packing action to minute fissure；
6, since a large amount of coarse-fine aggregates are dispersed in high polymer, especially fine aggregate, which is distributed in high polymer, to have
Imitate the antistatic property and anti-flammability of enhancing.
The present invention is in terms of improving the strength of materials, reinforcing material flame retardant property and reducing material cost three as incision
Point, it is developing a kind of " external offer frame, inherence provide intensity " and the filling of coal mine coal seam can be used for, reinforced and wind leaking stoppage
Double compound high polymers of aggregate, manufacturing cost is low, and the probability of underground coal mine accident generation can be effectively reduced in slip casting after.
Detailed description of the invention
Fig. 1 is preparation technology flow chart of the invention；
Fig. 2 is inside coarse-fine aggregate distribution map when the present invention is reinforced for coal seam；
Fig. 3 is that the present invention is used for inside coarse-fine aggregate distribution map when the wind leaking stoppage of coal seam；
Fig. 4 is the present invention for the internal coarse-fine aggregate distribution map of coal mine roof plate filling.
Wherein, 1, container I；2, container II；3, container III；4, room I is mixed；5, room II is mixed；6, grouting pump；
7, spray gun；8, three liquid mixer；14, coarse aggregate；15, fine aggregate；16, hole packer；17, fluid-conveying pipe；18, baffle；19, every
Wall；20, top plate.
Specific embodiment
Embodiment 1
A kind of grouting method of the coal seam reinforcing compound high polymer of double aggregates, as shown in Figure 1, steps are as follows:
(1) cobble that 7 parts of partial sizes are 6mm is chosen, the accumulation of the mountain flour that 35 parts of partial sizes are 2mm, measurement cobble and mountain flour is close
Degree and apparent density.
(2) processing is modified with modifying agent respectively to the coarse aggregate 14 and fine aggregate 15 that pass through screening, at modifying agent
30 parts of polyoxypropylene polyols in container I 1 are delivered to by pneumatic lifting material pump and room I 4 and 7 part modification are mixed by reason
Cobble afterwards carries out mixing 3min, and 5 parts of barium stearates are added and carry out decentralized processing, until be evenly distributed in outer layer,
Then 3 parts of dimethythiotoluene diamines, 3 portions of triphenyl phosphates and 3 parts of stannous octoates are sequentially added, in room I 4 is mixed
It is delivered to grouting pump 6 after stirring 3min, mixture is denoted as component A；
(3) 20 parts of polytetrahydrofuran ethoxylated polyhydric alcohols in container III 3 are delivered to by pneumatic lifting material pump and room is mixed
II 5,35 parts of modified mountain flours are added, room II 5 is mixed and stirs evenly, then 3 parts of dimethyl sulphur-based toluene are added thereto
Diamines, 3 portions of triphenyl phosphates and 3 parts of stannous octoates are delivered to grouting pump 6 after 3min is mixed in room II 5 is mixed,
Mixture is denoted as component B；
(4) 40 parts of polymeric MDIs in container II 2 are delivered to grouting pump 6, are denoted as component C；
(5) A that will be prepared in grouting pump 6, B, tri- kinds of components of C mix in three liquid mixers 8, after the ejection of spray gun 7 again
Through the interim injection crack coal seam of fluid-conveying pipe 17, and hole packer 16 being blocked in edge, coarse aggregate 14 is distributed in outer layer,
Fine aggregate 15 is distributed in internal layer, and coal seam can be completed after slurry curing and reinforce operation, which is used for
Inside 15 distribution map of coarse-fine aggregate is as shown in Figure 2 when coal seam reinforces.
After 3 days, sample segment is taken to detect performance indexes, double aggregates that this example is prepared are compound high poly-
The performance of object material is as shown in Table 1:
Table one: the performance of double compound high polymer materials of aggregate
| Performance | Index |
| Curing time (s) | 35 |
| Same day compression strength (MPa) | 40 |
| Compression strength (MPa) after 3 days | 42 |
| Flame retardant property | Self-extinguishing without fire |
Example 2
A kind of grouting method of the coal seam wind leaking stoppage compound high polymer of double aggregates, as shown in Figure 1, steps are as follows:
(1) rubble that 35 parts of partial sizes are 7mm is chosen, the accumulation of the silicon powder that 7 parts of partial sizes are 3mm, measurement rubble and silicon powder is close
Degree and apparent density.
(2) processing is modified with modifying agent respectively to the coarse aggregate 14 and fine aggregate 15 that pass through screening, at modifying agent
After reason, 18 parts of polyoxypropylene polyols in container I 1 are delivered to mixing room I 4 and 35 part by pneumatic lifting material pump and are changed
Property after rubble carry out mixing 3min, 5 parts of barium stearates are added and carry out decentralized processings, until outer layer is evenly distributed,
3 parts of dimethythiotoluene diamines, 3 portions of triphenyl phosphates and 3 parts of stannous octoates are sequentially added, are stirred in room I 4 is mixed
Grouting pump 6 is delivered to after 3min, mixture is denoted as component A；
(3) 12 parts of polytetrahydrofuran ethoxylated polyhydric alcohols in container III 3 are delivered to by pneumatic lifting material pump and room is mixed
II 5,7 parts of modified silicon powders are added, room II 5 is mixed, and stirred evenly, then 3 parts of dimethyl sulphur-based toluene are added thereto
Diamines, 3 portions of triphenyl phosphates and 3 parts of stannous octoates are delivered to grouting pump 6 after 3min is mixed in room II 5 is mixed,
Mixture is denoted as component B；
(4) 24 parts of polymeric MDIs in container II 2 are delivered to grouting pump 6, are denoted as component C；
(5) A that will be prepared in grouting pump 6, B, tri- kinds of components of C mix in three liquid mixers 8, after the ejection of spray gun 7 again
Slip casting region through interim 19 side of injection partition wall of fluid-conveying pipe 17, and baffle 18, coarse aggregate are set up in its other side
14 are distributed in outer layer, and fine aggregate 15 is distributed in internal layer, and wind leaking stoppage process can be completed after slurry curing, and double aggregates are compound
It is as shown in Figure 3 that high polymer is used for inside 15 distribution map of coarse-fine aggregate when wind leaking stoppage.
After 3 days, sample segment is taken to detect performance indexes, the compound high polymer of double aggregates made from the present embodiment
The performance of material is as shown in Table 2:
Table two: the performance of double compound high polymer materials of aggregate
| Performance | Index |
| Curing time (s) | 40 |
| Same day compression strength (MPa) | 26 |
| Compression strength (MPa) after 3 days | 33 |
| Flame retardant property | Self-extinguishing without fire |
Embodiment 3
A kind of grouting method of the coal mine roof plate filling compound high polymer of double aggregates, as shown in Figure 1, steps are as follows:
(1) the thick waste residue that 40 parts of partial sizes are 8mm is chosen, the flyash that 8 parts of partial sizes are 4mm measures thick waste residue and flyash
Bulk density and apparent density.
(2) processing is modified with modifying agent respectively to the coarse aggregate 14 and fine aggregate 15 that pass through screening, at modifying agent
After reason, 45 parts of polyoxypropylene polyols in container I 1 are delivered to mixing room I 4 and 40 part by pneumatic lifting material pump and are changed
Property after thick waste residue carry out mixing 0.5min, 5 parts of barium stearates are added and carry out decentralized processings, until being evenly distributed in outer layer
, 4 parts of dimethythiotoluene diamines, 4 portions of triphenyl phosphates and 4 parts of stannous octoates are then sequentially added, are being mixed
It is delivered to grouting pump 6 after stirring 3min in room I 4, mixture is denoted as component A；
(3) pneumatic lifting material pump will be passed through in 30 parts of polytetrahydrofuran ethoxylated polyhydric alcohols in container III 3 and is delivered to mixing
8 parts of modified flyash are added to being mixed evenly for room II 5, then 4 parts of dimethythiotoluene diamines, 4 are added thereto
Part triphenyl phosphate and 4 parts of stannous octoates are delivered to grouting pump 6, mixture after 3min is mixed in room II 5 is mixed
It is denoted as component B；
(4)) 60 parts of polymeric MDIs in container II 2 are delivered to grouting pump 6, are denoted as component C；
(5) A that will be prepared in grouting pump 6, tri- kinds of components of B, C mix in three liquid mixers 8, after the ejection of spray gun 7
Cavity again through interim injection 20 coal seam of top plate of fluid-conveying pipe 17, and filling slurry is used to support in the setting of the lower section in cavity
The top plate 20 of material, coarse aggregate 14 are distributed in outer layer, and fine aggregate 15 is distributed in internal layer, and top plate 20 can be completed after slurry curing and fill
Process is filled out, to fill internal 15 distribution map of coarse-fine aggregate as shown in Figure 4 for top plate 20 for double compound high polymers of aggregate.
After 3 days, sample segment is taken to detect performance indexes, the compound high polymer of double aggregates made from the present embodiment
The performance of material is as shown in Table 3:
Table three: the performance of double compound high polymer materials of aggregate
| Performance | Index |
| Curing time (s) | 36 |
| Same day compression strength (MPa) | 41 |
| Compression strength (MPa) after 3 days | 45 |
| Flame retardant property | Self-extinguishing without fire |
Certainly, the above description is not a limitation of the present invention, and the present invention is also not limited to the example above, this technology neck
The variations, modifications, additions or substitutions that the technical staff in domain is made within the essential scope of the present invention also should belong to of the invention
Protection scope.
Claims (10)
1. a kind of compound high polymer of double aggregates, which is characterized in that the raw material including following quality component: polyether polyol 20-
100 parts, 20-100 parts of polymeric MDI, 5-10 parts of dispersing agent, 5-10 parts of catalyst, 5-10 parts of chain extender, 3-10 parts of fire retardant, slightly
7-40 parts and fine aggregate 7-40 parts of aggregate.
2. a kind of double compound high polymers of aggregate as described in claim 1, which is characterized in that the polyether polyol is poly-
The bi-component polyether polyol that ether A and polyethers B is mixed according to the volume ratio of 3:2, wherein the degree of functionality of polyethers A is 5, phase
It is 2000 to molecular weight, the degree of functionality of polyethers B is 6, relative molecular weight 1000.
3. a kind of double compound high polymers of aggregate as described in claim 1, which is characterized in that the isocyanide in the polymeric MDI
Acid group content is 30.5%~32%.
4. a kind of double compound high polymers of aggregate as described in claim 1, which is characterized in that the dispersing agent is selected from stearic acid
The one or more of barium, resin acid zinc, calcium stearate, cadmium stearate, magnesium stearate and copper stearate.
5. a kind of double compound high polymers of aggregate as described in claim 1, which is characterized in that the catalyst is that octanoic acid is sub-
Tin, the chain extender are dimethythiotoluene diamine, and the fire retardant is triphenyl phosphate.
6. a kind of double compound high polymers of aggregate as described in claim 1, which is characterized in that the coarse aggregate be selected from cobble,
The one or several kinds of rubble and thick waste residue, particle diameter distribution are 6~10mm；The fine aggregate is selected from mountain flour, silicon powder, flyash
With the one or more of fine sand, particle diameter distribution is 1~5mm.
7. a kind of double compound high polymers of aggregate as claimed in claim 6, which is characterized in that the coarse aggregate, fine aggregate
Content and account for the 30%~50% of total amount.
8. a kind of grouting method of the compound high polymer of double aggregates as described in claim 1, which is characterized in that steps are as follows:
(1) type of two kinds of aggregates is chosen according to the requirement of safety of coal mines material, and determines the partial size of two kinds of aggregates, and measurement is thick
The bulk density and apparent particle density of aggregate and fine aggregate；
(2) processing is modified with modifying agent respectively to the coarse aggregate and fine aggregate that pass through screening, after modifier treatment, will gathered
Ether A is mixed with modified coarse aggregate, stirs 3min, and 5-10 parts of dispersing agent is added and carries out decentralized processing, and successively adds
Enter 1-3 parts of chain extenders, 2-4 parts of fire retardants and 1 part of catalyst, 3min is stirred using forced stirrer, which is denoted as component
A；
(3) a certain amount of modified fine aggregate is added in polyethers B and is mixed, 0.5min is mixed and stirs evenly, then to
1-3 parts of chain extenders, 2-4 parts of fire retardants and 1 part of catalyst are wherein sequentially added, 3min, the mixing are stirred using forced stirrer
Object is denoted as component B；
(4) a certain amount of polymeric MDI is weighed, component C is denoted as；
(5) A that will be prepared, B, tri- kinds of components of C carry out three liquid mixing slip castings.
9. a kind of grouting method of double compound high polymers of aggregate as claimed in claim 8, it is characterised in that: modifying agent uses
The silane coupling agent and titanate coupling agent of 1:1 volume ratio, are added in 30% ethanol water, after being sufficiently mixed after mixing
Liquid as modifying agent.
10. a kind of compound high polymers of aggregate double as described in claim 1-9 fill reinforcing and leak stopping side in coal mine coal seam
The application in face.
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